The following information lists all known Reaper air units and their reported abilities and weaknesses, if any.

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Harbinger/Harbinger Class

Harbinger, or the Harbinger-class Reaper, is a little over 3km long. It is an individual Reaper, with a modicum of some intelligence. Commander Shepard claims it spoke to him and his crew on multiple occassions in 2185. Latest intel reports it is leading the assault in London.

The second most numerous of all Reapers, the Destroyers are named for the fact that they are smaller, but just as powerful as the larger Reapers. They are often found on planets' surfaces, or clinging to ships like leeches to destroy them from up close.

Weakness: When the four plates unfold to reveal the magnetohydrodynamic cannon, the firing chamber appears to be an extremely weak spot, not covered by kinetic barriers.

Hades Cannon

Modified from the chassis of a Destroyer class, the Hades cannon is a ground to air cannon that the Reapers use as mobile AA installations. These units have also been sighted in orbit, as orbital defense turrets against fleets.